Graphite Bisulfate and Graphite Perchlorate
The intercalation compounds graphite bisulfate and graphite perchlorate can be made by reacting graphite with strong acids in the presence of oxidizing agents, causing the graphite to lose electrons and become positively charged.
Graphite bisulfate, +-, is made by reacting graphite with concentrated sulfuric acid and a little nitric acid or chromic acid. The analogous graphite perchlorate can be made similarly by reaction with perchloric acid.
In graphite perchlorate, planar layers of carbon atoms are 794 picometers apart, separated by ClO4- ions. Cathodic reduction of graphite perchlorate is analogous to heating KC8, which leads to a sequential elimination of HClO4.
Both graphite bisulfate and graphite perchlorate are better conductors as compared to graphite, as predicted by using a positive-hole mechanism.
Read more about this topic: Graphite Intercalation Compound